/* Main Styles - Vacation Planner */
:root {
    /* Neo glass theme with teal/purple accents */
    --primary: #7c3aed; /* purple */
    --primary-dark: #6d28d9;
    --secondary: #14b8a6; /* teal */
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --background: #0b1020;
    --background-light: #131a2e;
    --surface: #1d2742;
    --text-primary: #eef2ff;
    --text-secondary: #c7d2fe;
    --text-muted: #94a3b8;
    --border: rgba(255, 255, 255, 0.12);
    --shadow: rgba(0, 0, 0, 0.35);
    
    --transition-speed: 0.3s;
    --border-radius: 14px;
    --spacing: 1rem;
}

/* Optional light theme */
.theme-light {
    --background: #f6f7fb;
    --background-light: #ffffff;
    --surface: #ffffff;
    --text-primary: #0f172a;
    --text-secondary: #334155;
    --text-muted: #64748b;
    --border: rgba(2, 6, 23, 0.08);
    --shadow: rgba(2, 6, 23, 0.08);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    background: linear-gradient(135deg, var(--background) 0%, var(--background-light) 50%, var(--surface) 100%);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 30%, color-mix(in oklab, var(--primary) 25%, transparent) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, color-mix(in oklab, var(--secondary) 25%, transparent) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

.app-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing);
}

/* Header */
.glass-header {
    padding: 1.5rem;
    margin-bottom: 2rem;
    animation: slideDown 0.5s ease-out;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.app-title {
    font-size: 2rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: linear-gradient(135deg, var(--primary), var(--success));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    border: 1px solid var(--border);
}

.user-name {
    font-weight: 500;
    color: var(--text-secondary);
}

/* Navigation */
.glass-nav {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    padding: 0.5rem;
    animation: slideDown 0.5s ease-out 0.1s both;
}

.nav-tab {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-speed);
}

.nav-tab:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-2px);
}

.nav-tab.active {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(16, 185, 129, 0.2));
    border-color: var(--primary);
    color: var(--text-primary);
}

/* Main Content */
.main-content {
    animation: fadeIn 0.5s ease-out 0.2s both;
}

.view-container {
    display: none;
}

.view-container.active {
    display: block;
    animation: fadeIn 0.3s ease-out;
}

.view-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.view-header > * {
    flex-shrink: 0;
}

.view-header h2 {
    font-size: 1.75rem;
    font-weight: 600;
}

/* Buttons */
.btn-glass, .btn-primary, .btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-speed);
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    white-space: nowrap;
    min-height: 44px;
}

.btn-glass:hover, .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px var(--shadow);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-color: var(--primary);
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.3);
}

.btn-close {
    width: 32px;
    height: 32px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--transition-speed);
}

.btn-close:hover {
    background: rgba(239, 68, 68, 0.2);
    transform: rotate(90deg);
}

/* Icon Wrapper */
.icon-wrapper {
    display: inline-flex;
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.icon-wrapper.large {
    width: 48px;
    height: 48px;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: var(--spacing);
    backdrop-filter: blur(4px);
}

.modal.active {
    display: flex;
    animation: fadeIn 0.3s ease-out;
}

.modal-content {
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideUp 0.3s ease-out;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
}

.modal-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
}

.modal-body {
    padding: 1.5rem;
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group input[type="date"],
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: all var(--transition-speed);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

.checkbox-group label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.checkbox-group input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 2rem;
}

/* Login Page */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: var(--spacing);
}

.login-container {
    width: 100%;
    max-width: 420px;
    animation: slideUp 0.5s ease-out;
}

.login-card {
    padding: 2.5rem;
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header h1 {
    font-size: 2rem;
    margin: 1rem 0 0.5rem;
    background: linear-gradient(135deg, var(--primary), var(--success));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.login-header p {
    color: var(--text-muted);
}

.login-form {
    margin-bottom: 1.5rem;
}

.input-with-icon {
    position: relative;
    display: flex;
    align-items: center;
}

.input-with-icon .icon-wrapper {
    position: absolute;
    left: 0.75rem;
    opacity: 0.5;
    pointer-events: none;
    z-index: 1;
}

.input-with-icon input {
    padding-left: 3rem !important;
    position: relative;
}

.btn-login {
    width: 100%;
    justify-content: center;
    padding: 1rem;
}

.login-footer {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .app-title {
        font-size: 1.5rem;
    }
    
    .header-content {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .header-actions {
        width: 100%;
        justify-content: space-between;
    }
    
    .view-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .nav-tab {
        font-size: 0.875rem;
        padding: 0.75rem;
    }
    
    .form-actions {
        flex-direction: column-reverse;
    }
    
    .form-actions button {
        width: 100%;
    }
}